GENETIC DIVERSITY OF MELAMPSORA POPULATIONS DETECTED BY AFLP MARKERS
B SAMILSl, U LAGERCRANTZl, M LASCOUX2 and U
lDepartment of Plant Biology, SLU, 750 07 Uppsala, Sweden; 2Department of Genetics, Uppsala University, 750 07 Uppsala, Sweden
Background and objectives
Willow leaf rust caused by Melampsora spp. is a serious disease on Salix species grown in short-rotation plantations. To devise an efficient control strategy, information on the Melampsora population genetic structure is required. We have started developing AFLP markers, a DNA fingerprinting technique based on the selective amplification of restriction fragments , to assess the genetic variation in rust samples collected from the same willow clones grown in three different localities in central and southern Sweden.
Results and conclusions
Preliminary results indicate a high degree of polymorphism. This genetic polymorphism will be used to study genetic diversity and to derive indirect estimates of migration rates. Current results will be presented.
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